Heeling-machine.



.I. E. GLIDDEN.

HEELING MACHINE. APPLICATION FILED APR. 19, 1910.

1,138,948. Patented May 11, 1915.

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[HE NORRIS PETERS 60.. FHOTO-L!THO.. WASHINGTON. D. L

J. E. GLIDDEN.

HEELING MACHINE.

APPLICATION FILED APR. 19,1910.

1,138,948, Patented May11,1915.

4 3 SHEETS-SHEET 2.

fiweniow:

flh M fidm .HE NORRIS PETERS 6a., PHOm-LITHQ, WAbHlNGtum, D. c.

J. E. GLIDDEN.

HEELING MACHINE.

APPLICATION FILED APR. 19. 1910.

1,138,948. Patented May11,1915.

3 SHEETS-SHEET 3.

1114211061965:- film .rlE NORRIS PETERS 60., PHOTO-LITHO.. WASHINGTON,D. Cv

JOHN E. GLIDDEN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO'UNITEID SHOEMACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NET/VJERSEY.

HEELING-MACHINE.

Specification of Letters Patent.

Patented May 11, 1915.

Application filed April 19, 1910. Serial No. 556,326.

To all whom it may concern:

Be it known that I, JOHN E. GLIDDEN, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain Improvements in Heeling-Machines, of which thefollowing description, in connection with the accompanying drawings, isa specification, like reference characters on the drawings indicatinglike parts in the several figures. 1

This invention relates to machines for attaching heels to boots andshoes and more particularly to improvements in machines of this classadapted for both blind and surface nailing.

In the present application, the invention is illustrated and describedas embodied in a machine of the type disclosed in U. S. Patent No.694,656, Mar. 4, 1902, Mayo. In attaching a heel with a machine of thistype, the heel is compressed during, and coincidentally with, the naildriving operation. This mode of operation has, at times, been founddisadvantageous because the total pressure is not exerted upon the workuntil the end of the nail driving operation. During the first part ofthis operation, the pressure is sometimes insufficient to hold the heelfirmly enough to prevent the resistance offered to the driving of thenails from causing the nails to cripple.

One object of the present invention is to obviate this difficulty, andin accordance with this object a feature of the invention comprisesimproved means for applying pressure to the heel preliminarily to thenail driving operation. The movement of the nailing die, to compress theheel, is made independent of the heel attaching movement of the driverblock although a single actuator may be employed for controlling bothmovements. Preferably the nailing die and driver block have separateoperating trains arranged, however, to so co-act that during thecompression of the heel the normal relation of the die and block remainsunaltered.

In the best construction known to the in ventor at'the present time thedriver block is mounted upon a vertically moving plunger, or othersuitable support, and is raised and lowered by means of a crankoperating through a toggle. The nailing die is mounted in a cross-headon guides, or other supports, which are raised and lowered by means of acam operating through a second toggle. The timing of the cam and crankis such that the cam moves the nailing die to compress the heel at aboutthe time the crank is crossing dead center and is, therefore,substantially inoperative. To maintain the normal position of thedrivers within the nailing die during the compression, the train foroperating the drivers is constructed to permit the driver block to beadvanced, at the speed of movement of the nailing die, during thecompression. To this end the driver block actuating toggle is providedwith a slot within which the plunger supporting the block may be movedthrough the engagement therewith of a moving part of the nailing dieactuating train. This provides for an initial upward movement of thedriver block by the operating train which advances the nailing die.

Heretofore, in heel attaching machines of this type when it was desiredto change from surface to blind nailing it was necessary to provide thedriver block with liners to limit the operative stroke of the drivers.Liners are unserviceable for the reason that with this mode of operationthe amount of projection of the nails for blind nailing can be variedonly in accordance with the particular thickness of the liner used andas the thickness of the liners changes with wear they soon becomeinaccurate.

Another object of the invention is to provide an improved constructionto facilitate a change from blind to surface nailing. In accordance withthis object another feature of the invention comprises means foradjusting the nailing die toward and from they driver block, to vary theprojection of the drivers therein, permitting any particular amount ofadjustment that may be desirable. This may be accomplished by theprovision of a jack screw on which the nailing die is carried. It ispreferred to use two jack screws at opposite ends of the die todistribute the strain and indicators are provided for each so that theadjustment of each may be made the same.

In the machine of the patent hereinbefore referred to, to renail a heelor a top lift that had been incorrectly attached it was necessary to runthe machine idly through a single-revolution, or readjust the. walkingbeam toggle by the hand lever, to bring the jack to the. proper heightto give the correct pressure for a repetition of the operation just.

performed incorrectly. If this was not done a false pressure would begiven that would injure either the shoe or the machine.

Another object of the invention is to provide a construction wherein theheel or top lift attaching operation may be repeated at will without aseparate readjustment of the machine.

A further feature of the invention, accordingly, consists in theprovision of means for varying the height of the jack above the nailingdie, constructed to be operated automatically without the necessity ofspecial manipulation by the operative. With this construction, if theheel attaching nails, for example, have been crippled and it is desiredimmediately to attach another heel, no attention to the jack isnecessary, since it will be automatically located in proper relation tothe nailing die as an incident to the other operations. Theconstruction, preferably, is such that the jack is adjustedautomatically for either the heel or top lift attaching operation sothat either of these operations may be repeated without a separatereadjustment of the machine. The illustrated construction for moving thejack automatically preliminary to the heel. attaching or the top liftattaching operation comprises wedge mechanism which acts positively tohold the jack against the heeling pressure after it has been moved intoadjusted position. As shown, the wedge is connected to the heel and toplift plate and is carried, by the movement of the latter, in and outbeneath the lower end of a vertically movable bar guided in the frameand acting on the rear end of the walking beam which carries the ack atits front end. The bar is provided with an adjustable stop by means ofwhich the height to which the jack is permitted to lift is varied inaccordance with the thickness of the top lift to be attached.

Other features of the invention relate to an improved last spindle forholding shoes on the jack when nailing on wooden lasts, and to certaindevices, combinations and arrangements of parts, hereinafter describedand claimed, which possess advantages in simplicity of construction andease of operation which will be apparent to those skilled in the art.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, in which Figure 1 is a side elevation of themachine with some parts broken away to illustrate details ofconstruction; Fig. 2 is a front elevation of the lower part of themachine with some parts broken away to show details of construction;Fig. 3 is a horizontal section on the line 33 of Fig. 1; Fig. 4 is adetail, in perspective, of the pressure indicator;

and Fig. 5 is a detail of the end of the jack when used for nailing onwood lasts.

In the embodiment of the invention illustrated in the drawings, theframe 2 supports at its upper end a walking beam 4 having at its forwardend a universal joint 5, to which is adjustably connected a plunger orspindle 6 guided in the frame at 7 and adjusted by means of a hand wheel8. To the lower end of the plunger is attached a support 9 for a jack10. The jack support is provided with a pointer 11 cooperating with thescale 12 (see Fig. 4), the purpose of which will be explained inconnection with the description of the operation of the machine. Aspring 13 attached to the machine frame engages the walking beam 4 andacts to normally maintain the jack in its elevated position. All oftheseparts may be, and preferably are, 7 substantially as shown in the patentto Mayo hereinbefore referred to. The machine is provided with any ofthe well known forms of band clamp for the counter of the shoe,indicated generally at 14 (Fig. 1).

The driving shaft 16 (Fig. 1), continuously driven by means of a beltrunning over a pulley 18 at one end of the shaft, is at the rearournaled in the lower part of the frame. Centrally of the driving shaftthere is provided a crank 20 which is connected by means of a pitman 22to the knuckle of a toggle 24 (Fig. 2) at the front of the machine. Thelower arm of the toggle 24 is pivoted upon a pin 26 carried by a support28 (Fig. 2). The support is provided with a depending cylindricalportion 29 fitted within a socket formed therefor in the frame and ispermitted a setting-up adjustment both vertically and angularly by meansof screws 30 and 31 (Fig. 2) respectively. The

upper arm of the toggle 2431s pivotally connected by a pin 25 (dottedlines Fig. 2) to the lower end of a plunger or spindle 32 which extendsupwardly through guides 33 and 34 at the front of the frame and carriesat its upper end a table upon which is mounted a driver block 36 havingremovably fitted therein a driver plate 37 carrying a gang of drivers.38. The parts just described all may be, and preferably are,substantially the same as in the patent to Glidden & Elliotthereinbefore referred to.

A multiple nailing die 40, which receives the ends of the drivers, isremovably secured, as usual, above the driver block in a crosshead 42.The cross-head is adjustably sup ported at its ends upon a pair of guiderods 44. These rods extend through ears 39 upon the driver block,through the guide 33 and are seated at their lower ends in a secondcross-head 46 which is pivotally connected by pins 47 to the upper armsof a second toggle 48 formed in two parts and arranged at the sides ofthe toggle 24. The lower arms of the double toggle 48 are pivotallymounted upon the ends of the pin 26 in the support 28. To the lower armsof the double toggle 48 there is connected the forked end of arearwardly extending yoke bar 50 (Fig. 1), supported upon the upper endof a link 51 mounted on the frame, which embraces Within its yoke a cam52 mounted upon the driving shaft, the yoke carrying diametricallydisposed cam rolls 54 which bear continuously and simultaneously uponthe surface of the cam. A coiled spring 56 is connected at one end tothe frame and at its other to the yoke bar and acts in a direction toassist the cam 52 to raise the nailing die. 7

The operation of this part of the mechanism is as follows. The operativeadjusts the jack by means of the hand wheel 8 until the pointer 11indicates upon the scale 12 the height of heel whichis to be operatedupon, the scale being so mounted on the frame that when the pointer isthus adjusted a pressure suitable for this height of heel is used. Ashoe is then placed upon the jack and it is pushed into the band clamp14 against the pressure of the spring pressed plunger 58 which acts tonormally keep the jack in the position shown in Fig. 1. The machine isthen set in operation, by means of an actuator hereinafter described,and the cam 52 immediately operates through its train of mechanism tostraighten the double toggle 48 and lift the cross-head 46 which in turnlifts the guides 44 and nailing die 40. The nailing die meets and givesa positive compression to the heel, which has previously been placed inposition, and thereafter the crank 20 operates through its train ofmechanism to straighten the toggle 24 which advances the driver blockand attaches the heel to the shoe by driving the gang of nails in thenailing die through the heel.

The timing of the machine, permittin the compression of the heel to becomplete before the nails are driven, is obtained in the followingmanner. The risers on the cam 52, which operate to straighten the toggle48, are so placed that this toggle is straightened at or about the timethat the crank 20 is crossing dead center, as shown in Fig. 1. Thenailing die will, therefore, be advanced to compress the heel at a timewhen the driver block is substantially stationary. If, however, thedriver block were allowed to remain stationary, the advance of thenailing die would alter the normal relation of the block and die. Thedie would be withdrawn from the ends of the drivers and difficulty wouldbe encountered in causing the drivers to again enter the nail holes inthe nailing die when the block was thereafter advanced to drive thenails. Furthermore, under these conditions the nails might drop out ofthe die. To overcome these difficulties the upper arms of the toggle 24are provided with slots 60 (see dotted lines Figs. 1 and 2) within whichthe pin 25 may move, and the lower end of the plunger 32 is cut away soas to form a shoulder 62 (Fig. l), which is engaged on the upwardmovement of the nailing die by a set screw 64 carried by the lowercross-head 46. WVith this construction the cam 52 for operating thenailing die not only advances the nailing die but, through theinterconnection of the crank and cam trains of mechanism by reason ofthe engagement of the set screw 64 with the shoulder 62, also advancesthe driver block relatively to the toggle 24 which movement is permittedby a movement of the pin 25 within the slots 60- of said toggle. Thespeed of movement of the block and die is, of course, the same and thenormal relation of the two parts is, therefore, maintained during thecompression of the heel. By the time the compression is completed by thenailing die, the crank 20 has passed dead 7 center and the straighteningof the toggle 24 begins to raise the plunger 32 carrying the driverblock and this movement is continued imtil the nails are driven. Whilethe cam constitutes means for advancing die and block simultaneously,the crank constitutes additional means to advance the block after thedie comes to rest.

The driving shaft 16 is provided with the well known type ofone-revolution Horton clutch indicated generally at 66 (Fig. 2), thecontrolling lever 68 being operated by means of a treadle 70, allsubstantially as shown in the patent to Glidden & Elliott hereinbeforereferred to. It is thus seen that although separate trains of mechanismare employed for operating the nailing die and driver block, still theiroperation is controlled by a single actuator. The driving shaft is alsoprovided with a brake wheel 72 (Fig. 2) acted upon by a brake lever 74(Fig. 1) arranged and operated in a manner substantially similar to thewheel and lever shown in said patent.

The purpose of the adjustable connection of' the nailing die to itsguide rods'44 will now be explained. In blind nailing, as is well knownto those skilled in the art, the distance between the driver plate andnailing die is such that at the completion of the stroke of the driverblock the ends of the drivers are still a short distance from the faceof the nailing die. In surface nailing, however, the stroke of thedriver should be such that at its completion the ends of the drivers areflush with the face of the nailing die. In order to permit an adjustmentof the distance between the driver block and nailing die and thusprovide for both blind and surface nailing in the same machine, thenailing die cross-head 42 is mounted upon jack screws 76 (Fig. 2)threaded upon the upper ends of the guide rods t-i. The heads of thesejack screws project through the cross-head and have secured theretopointers 78 (Fig. 3) which are held from movement relative to the jackscrews by pins 7 9 and cooperate with stationary scales 80 on thecross-head. The guide rods at are held from rotary movement by means ofset screws 82 (Figs. 1 and 2) threaded therein which move in slottedways 83 formed at the ends of the guide 33. By turning the jack screws 76 the cross-head 42 is moved toward or from the nail block 36 and thepointers serve to indicate when the adjustment at each end of thecross-head is the same so that the face of the nailing die may be kepthorizontal. The jack screws are locked in any position of adjustment bymeans of thumb nuts 86 (Figs. 2 and Referring now to Fig. 3, the machineis provided with a heel and top lift plate 88 pivoted at 89 at the upperside of the crosshead 42. It is also provided with a nail loader 90pivoted on the frame at 91 and movable by the operative by means of ahandle 92. The nail loader is supplied with successive gangs of nails bymeans of a nail assorting mechanism indicated generally by 94 (Fig. 1),the nails passing through tubes 95 to a station just above the nailloader from which they are delivered when the loader is in its outwardposition, as shown in Figs. 1 and 3. The heel and top lift plate 88 isnormally held turned about its pivot 89 with the top lift holder 95 inoperative position by means of a coiled spring 98 (Fig. 3), connected atone end to the heel and top lift plate and at its other end to the frameof the machine. 'When the nail loader 90 is moved forward to deliver itsgang of nails to the nailing die, a cam or bunter 99 (Fig. 3) engagesthe heel and top lift plate and turns it about its pivot against theforce of the spring 98 until the heel holder 100 is moved to operativeposition and the plate is then looked in this position by means of alatch 101, the nail loader being returned to its outward position. Theupward movement of the driver block in attaching the heel causes arelease of the latch 101 and permits the spring 98 to turn the heel andtop lift plate about its pivot and automatically place the top liftholder in operative position. A dash pot 102 is provided to cushion thereturn movement of the heel and top lift plate. All of these parts justreferred to, or their equivalents, with the exception of the dash pot,may be and are substantially the same as in the patent to Mayohereinbefore referred to.

For reasons well known to those skilled in the art, it is desirable toplace the same pressure upon the shoe in attaching the top lift as isused when attaching the heel. For this purpose, in the present machine,as in the machines of the prior patents hereinbefore referred to, thejack 10 is permitted to be moved upward by the spring 13 a distanceequal to the thickness of the top lift prior to the top lift attachingoperation. The mechanism herein provided to gain this end, comprises ahousing 103 (Figs. 1 and 3) at the rear of the frame which forms aguideway for wedge 104 connected by a link 105 to the heel and top liftplate. This wedge operates beneath the end of a rod 106 pivoted at itsupper end to the rear end of the walking beam 4 and guided at its lowerend in an aperture formed in the upper side of the housing 103. Withthis construction when the nail loader 90 is moved forward by theoperative to deposit a gang of nails to the nailing die, thereby turningthe heel and top lift plate to the right (Fig. 3) about its pivot, theconnection'of the plate, to the wedge through the link 105 draws thewedge forward beneath the lower end of the rod and tilts the walkingbeam in a manner to lower the ack 10 to a point at such a distance fromthe nailing die to provide for the desired compression of the heel.After the heel has been attached the automatic angular movement of theheel and top lift plate to place the top lift holder in operativeposition acts upon the wedge through the link 105 to move the wedgerearwardly and permit the spring 13 to tilt the walking beam in adirection to raise the jack. The point to which the jack is raised isdetermined by means of an adjustable stop formed by a nut 107 threadedon the lower end of the rod 106 and locked in adjusted position by a jamnut 108. The position of the nut 107 on the rod 106 determines theeXtent of its downward movement and, therefore, the extent of the upwardmovement of the jack. The wedge 10 i is moved by the heel and top liftplate a sufficient distance to the rear to withdraw it fromengagementwith the lower end of the rod 106. Thus, when the top lift is attached,a firm bearing is provided by the transmission of the pressure throughthe walking beam 4 and rod 106 directly to the frame. The nut 107 may beindependently adjusted to accord with the thickness of the top lift tobe used.

By means of the construction just described for varying the height ofthe jack for the heel and top lift attaching operations, it will beapparent that either operation may be repeated at will, if either isunsuccessful, without a separate adjustment of the machine to'obtain theproper compression for the repeated operation. If, in blind nailing, thenails in the heels have crippled and it is desired to immediately repeatthe heel attaching operation, although the height of the jack has justbeen automatically altered by the shifting of the heel and top liftplate, the movement of the nail loader by the operative, to deliver anew gang of nails to the nailing die, draws the wedge 10 1 forward andcauses the jack to be repositioned for the heel attaching operation. Ifa top lift has been incorrectly applied to the heel this operation maybe immediately repeatedbecause, at the completion of the top liftattaching operation, the position of the wedge remains unchanged and,therefore, the height of the jack is unaltered. The change in height ofthe jack from top lift to heel position can be obtained only by themovement of the nail loader by the operative.

The operation of the machine will be sufficiently understood from theforegoing description. It need only be said here that the treadle isordinarily depressed twice, once for the heel and once for the top liftalthough if desired the operative may keep his foot on the treadle untilafter the top lift attaching operation has been started.

Referring now to Fig. 5, when it is desired to nail shoes upon woodlasts the jack 10 is provided at its lower end with a last plate 109having a heel spindle 110, provided with diametrically arranged axialslots connected by a diametrical' slot across the lower end of thespindle, and seated within these slots.

is a horseshoe-amped spring 111, the arms of which normally projectbeyond the surface of the spindle. \Vhen nailing upon a wood last, theheel socket 112 of the last is placed over the heel spindle 110 and theyielding arms of the spring 111 serve to frictionally engage the wallsof the socket and hold the last upon the jack which,

otherwise, owing to the fact that the shoe is placed in the machine soledown, would fall off as the jack is being moved into operative positionunless held by the operative.

In interpreting the following claims, the term heel is to be understoodas including within its meaning either a heel or a top lift, or both ofthese articles, except where the context prohibits such aninterpretation. All references to position or direction of movement ofthe parts in the claims are to be interpreted as terms of designationand not of limitation, as chviously it is the relative position, orrelative direction of movement, which is alone of importance.

Nothing herein contained is to be interpreted as limiting this inventionin the scope of its application to use in connection with the particulartype of machine selected for purposes of illustration and explanation,for while it is preferred to employ the specific construction andarrangement of the parts shown and described since this construction andarrangement is the simplest and most efficient embodying the inventionwhich has yet been devised, it will be understood that this constructionand arrangement is not essential except so far as it is specified in theclaims and may be varied or modified without departing from the broaderfeatures of the invention.

What is claimed as new, is

1. In a heel attaching machine, the combination of a nailing die, a jackadjustable relatively to the die into different heel and toplift'attaching positions, and means for eflecting such adjustmentsautomatically constructed to permit the repetition of one of theattaching operations without manipulation by the operative.

2. In a heel attaching machine, the combi nation ofa shoe support, anailing die, a driver block, a toggle for actuating said die to causecompression of the work, means connected to said toggle for actuatingthe same, an independent toggle for actuating the driver block andseparate mechanism for actuating the last named toggle, said means andsaid mechanism being timed to act successively in the order stated.

3. In a heel attaching machine, the combination of a shoe support, anailing'die, a driver block, a toggle for actuating'said die to causecompression of the work, means connected to said toggle for actuatingthe same, an independent toggle for actuating the driver blockandseparate mechanism for actuating the last named toggle, said meansand said mechanism being timed to act successively in the order stated,and a single controlling device for said means and mechanism.

4. In a heel attaching machine, the combination of nailing mechanismincluding Yupwardly movable drivers, a downwardly extending work supportlocated above said nailing mechanism, and means upon said work supportfor engaging frictionally a last and holding the last suspended upon thework support.

5. In a heel attaching machine, the combination of upwardly actingnailing mechanism, a downwardly extending work support located abovesaid nailing mechanism, and expansible spring means upon said worksupport for entering the socket of a last and holding said lastsuspended upon the V 8. A heel attaching machine, having, incombination, a shoe support, a suitably supported nailing die, asuitably supported driver block, toggles for advancing said die andblock toward the shoe support connected to their respective supports,the driver block toggle having a slot in one of its ends, and meanscontrolled by the advance of the die support for advancing the blocksupport within the toggle slot and relatively to its toggle,substantially as described.

9. A heel attaching machine, having, in combination, a driver. blocksustaining a driver plate and drivers, a movable nailing die into whichthe drivers penetrate, means for adjusting the die to vary thepenetration of the drivers within the die, and means for indicating theamount of such adjustment, substantially as described.

10. A heel attaching machine, having, in combination, a driver blocksustaining a driver plate and drivers, a nailing die into which thedrivers penetrate supported on jack screws at opposite ends, anadjustment of said screws varying the penetration of the drivers withinthe die, pointers movable with the heads of said screws, and scales withwhich said pointerscoiiperate to indicate the amount of adjustment,substantially as described.

11. In a heel attaching machine, the com-' bination of upwardly actingnailing mecha nism, a depending work support and means fordetachablyholding a wood last suspended upon the work support when thework is out of engagement with the nailing mechanism.

12. A heel attaching machine, having, in combination, a nailing die, a jaok adjustable to different positions relative to the die, for the heeland top lift operations, machine controlled means for obtaining thelatter adjustment, and operative controlled means only for obtaining theformer adjustment,

whereby the jack remains in its top lift position after the. top liftoperation is completed, substantially as described.

13. A heel attaching machine, having, in combination, a nailing die,amovable nail loader, a jack, means for automatically adjusting the jackforthe top lift operation after the heel operation, and means controlled by the movement'of the nail loader toward the die to readjustthe jack for another heel operation, substantially as described.

14. A heel attaching machine, having, in combination, a nailing die, ajack, a jack adjusting device, a movable work holding plate, connectionsbetween said adjusting device and plate by virtue of which the jack isadjusted in accordance with the position of the plate relative to thedie, and means for moving the plate, substantially as described.

15. A heel attaching machine, having, in combination, a nailing die, ajack, a jack adjusting device, a heel and top lift plate, automaticmeans to move the plate relative to the die for the top lift operation,manually controllable means to move the plate relative to the die forthe heel operation, and means connecting the adjusting device to saidplate, substantially as described.

16. In a heel attaching machine, the combination of a nailing die, ajack adjustable relatively to the die into different heel and top liftattaching positions, and means for effecting such adjustmentsautomatically, constructed to permit the repetition of either of theattaching operations without a separate readjustment of the machine bythe operative. v

17. In a heel attaching machine, the combination of a nailing die, ajack, a wedge, means for actuating the wedge automatically to move thejack into heel attaching position, means for moving the nailing dietoward the jack to compress the work, and means for driving the heelattaching nails.

18. In a heel attaching machine,the combination of a. nailing die, ajack movable toward the die to heel attaching position, wedge means formoving the jack automatically into said position, means for positivelymoving the nailing die toward the jack to exert pressure upon the heeland means for driving attaching nails into the heel. 1

In testimony whereof I have signed my name to this specification inthepresence of two subscribing witnesses.

JOHN E. GLIDDEN.

lVitnesses HERBERT WV. KENWAY, JAMEs R. HonDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

